Not far from the New Fulton Fish Market in the Bronx neighborhood of Hunts Point, Christopher Toole is doing a little fishing of his own. Leaving behind a life of financial planning, Toole and his girlfriend Anya Pozdeeva have set up shop as urban fish farmers. Dozens of 50-gallon plastic recycling bins make up the couple’s fish farm, where they are raising tilapia and other fish. The fish are part of a small urban farm at a Bronx Community Center, where an herb garden is fertilized by the fish’s waste.